heavier-than-air
adjective
heav·i·er-than-air
ˈhe-vē-ər-ṯẖən-ˈer 
: of greater weight than the air displaced
Word History
First Known Use
1903, in the meaning defined above
Dictionary Entries Near heavier-than-air
Cite this Entry
“Heavier-than-air.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heavier-than-air. Accessed 16 Apr. 2024.
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Kids Definition
heavier-than-air
adjective
: of greater weight than the air that would occupy the same amount of space
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